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(2p) 2 Calculați: a) 13/8+2/8-5/8 b) 1/5 + 5/13-3/14 ​

Răspuns :

Răspuns:

a)13/8+2/8-5/8=10/8=5/4

b)1/5+5/13-3/14= 70×13=910

=> 162/910+350/910-65/910

=>512/910-65/910

=> 447/910